select count(*) from version where version = 22
insert into player_transcoding2(player_id, transcoding_id)
select distinct p.id, t.id from player p, transcoding2 t where t.name='mkv video'
version = 22
transcoding_id in (select id from transcoding_2 where name = 'mkv video')
name = 'mkv video'
select count(*) from version where version = 23
name='mp3 audio'
version = 23